Carl oscar forsell



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0 0. FORSELL GUN MOUNT.

No. 597,178. Patented Jan. 11,1898.

5 ME N 17ml MW LLLLHLL 3 Q06 "afiraela I UNITED STATES PATENT OFFICE.

CARL OSCAR FORSELL, OF NEW YORK, N. Y.

GUN-MOUNT.

SPECIFICATION forming part of Letters Patent No. 597,178, dated January11, 1898. Application filed March 25, 1897. Serial No. 629,126. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, CARL OSCAR FORSELL,

of New. York, in the county of New York and State of New York, haveinvented certain new and useful Improvements in Turn-Tables forOrdnance; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to turn-tables for 0rdnance.

My object is to provide an improved turntable for the gun-carriage whichwill be of extremely simple construction and will comprise novelmechanism whereby said turntable may be rotated with great ease.

The foregoing object is accomplished by the provision of certainimproved devices, Whose construction will appear more fully in thefollowing description, and the novel features thereof will be pointedout in the appended claims.

In the accompanying drawings, Figure 1 is a side elevation, Fig. 2 is asectional elevation, and Fig. 3 a bottom plan view, of the table.

The numeral 1 designates the wooden deck of the vessel or the platformin case the turntable is used on land. Below this wooden deck there is ametal deck 2.

The numeral 3 designates a center block provided with an annular flange4, which extends through the wooden deck and rests on the projectingedge of the metal deck. Bolts 5 are employed for bolting the flange ofthe pivot to the metal deck.

The numeral 6 designates a circular track which is suitably bolted tothe two decks at 7, and this track is provided with a rack 8 on itsouter face or edge.

The numeral 9 designates the turn-table, the same being formed with acentral chamher or pocket 10, which loosely receives the block. Thisturn-table has radial strengthening-webs 11 on its under face, and thereare recesses 11 made in the outer ends of said Webs.

The numeral 12 designates spindles, which are fixed in the webs andextend across the pockets or chambers therein, and I employ sphericalrollers 13, which are journaled on to bear against the turn-table.

pivot 3 and has an upper rounded end adapted At 16 there is shown aratchet-lever for actuating this jack-screw.

The gun-carriage is shown at 17, and this may be of any constructiondesired, the same not constituting a part of the present invention.There is a vertical shaft 18, journaled in the bearings connected to thecarriage and the turn-table, and the same carries on its lower end apinion 19, which meshes with the rack-face 8 of the track.

The numeral 20 designates a worm-wheel carried on the upper end of theshaft. There is a hand-wheel 21, provided with a worm 22, which mesheswith the wheel 20, and which is journaled to the gun-carriage.

The gunner by turning the hand-wheel 21 I can now easily swing theturn-table aroundv to any desired point and, at the same time train thepiece of ordnance. It will be observed that the weight is distributedbetween the rounded end of the jack-screw and the spherical rollerswhich run on the track, the bearing-points being few and of small area.The operation of turning the table, and hence the piece of ordnance, isextremely easy and can beaccomplished by one man. After the table hasbeen properly turned the jack-screw can be turned down again.

When the turn-table is installed, a suitable space is left between itand the upper end of the center block, because after continueduse saidtable will settle somewhat, and if the space is not provided theturn-table would be lifted from the track.

It will be observed that the center block serves a twofoldfunction-namely, as a pivot for the turn-table and as an abutmenttoresist the lateral movement of the turn-table occasioned by the recoilof the piece of ordnance.

There are many slight changes which could be resorted tosuch, forinstance, as substituting a worm-wheel gear for elevating and depressingthe jack-screw-without detracting from any of the advantages of theinvention, and hence it is to be understood that I do not limit myselfto the precise construction herein shown and described, but considerthat I am entitled to all such changes as properly come within thespirit and scope of the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination with a turn-table and a stationary center blockfitted into the turntable centrally thereof, of a vertically-disposedjack-screw threaded through the center block, means for turning thejack-screw to bring the end thereof against the turntable, and means forturning the table.

2. The combination with a stationary center block, of cylindrical shape,of a turn-table HARRY REXFORD VALLENTINE, SAMUEL ARTHUR WEIsMAN.

